Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 192 Atk / 52 SpD / 16 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Thunder Wave  
- Whirlwind  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Knock Off  
- Morning Sun  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 156 SpD / 100 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Toxic  
- Flamethrower  
- Recover  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 240 HP / 184 Def / 84 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Rest  
- Sleep Talk  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 8 Def / 60 SpD / 192 Spe  
Jolly Nature  
- Defog  
- Foul Play  
- Roost  
- Knock Off  

Groudon @ Leftovers  
Ability: Drought  
EVs: 92 HP / 252 Atk / 164 Spe  
Adamant Nature  
- Swords Dance  
- Rock Polish  
- Precipice Blades  
- Stone Edge